Missouri city wastewater treatment plant case study


Courtesy of In-Pipe Technology Company, Inc.

Project Summary
Missouri City selected In-Pipe Technology, Inc. to provide a collection system bioaugmentation program reduce influent load, energy costs and sludge production at the wastewater treatment plant (WWTP). The program is also designed to control fats, oil and grease (FOG) accumulation and odor in the collection system.

In-Pipe Treatment Strategy
In-Pipe designed a treatment strategy and provided, installed and maintains forty three dosing units for the collection system which add a consortium of bacteria throughout the City's wastewater collection system. In-Pipe's blend of facultative anaerobic bacteria form a biofilm inside the sewer pipes which initiates treatment of the wastewater in the sewer system during conveyance to the WWTP. The treatment also inoculates the influent wastewater with heterotrophic wastewater bacteria that enable a greater degradation of organics and lower oxygen requirements than normal wastewater bacteria.

After eighteen months of collection system bioaugmentation treatment the WWTP has observed the following positive changes:

  • 30% Reduction in Influent CBOD Load
  • 14% Reduction in Effluent TSS Load
  • 65% Reduction in Effluent Ammonia Load
  • 31% Reduction in Gallons of Sludge Pressed

Project Installed: June 2011
Plant Size: 1.63 MGO
Service Objectives:

  • Control Collection System FOG and Odor
  • Reduce Influent CBOD and TSS Load
  • Improve Effluent Quality
  • Reduce Energy Use and Sludge Production

Performance Summary:

  • 30% Reduction Inf. CBOD Load
  • 14% Reduction Eff. TSS Load
  • 65% Reduction Eff. Ammonia Load
  • 31% Reduction Sludge for Disposal (Gallons)

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